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PubMed COVID-19 Clinical Care

27531 - 27540 of 44979 results found

Effectiveness of previous infection-induced and vaccine-induced protection against hospitalisation due to omicron BA subvariants in older adults: a test-negative, case-control study in Quebec, Canada

Date
Monday, July 17, 2023 - 4:00 AM
Description
BACKGROUND: Older adults (aged ≥60 years) were prioritised for COVID-19 booster vaccination due to severe outcome risk, but the risk for this group is also affected by previous SARS-CoV-2 infection and vaccination. We estimated vaccine effectiveness

Defining the role of natural killer cells in COVID-19

Date
Monday, July 17, 2023 - 4:00 AM
Description
Natural killer (NK) cells are critical effectors of antiviral immunity. Researchers have therefore sought to characterize the NK cell response to coronavirus disease 2019 (COVID-19) and the virus that causes it, severe acute respiratory syndrome